Columbia Encyclopedia

(Encyclopedia)  CE5 Video transmission and reception of color and black-and-white television: The camera lens focuses collected light rays into mirrors, which separate the image into its three primary color compon...

(Encyclopedia) cable television, the transmission of televised images to viewers by means of coaxial cables. Cable systems receive the television signal, which is sent out over cables to individual subscribers, by a...

(Encyclopedia) television microscope: see microscope. ...

(Encyclopedia) educational television: see audiovisual education. ...

(Encyclopedia) Children's Television Workshop: see Cooney, Joan Ganz. ...

(Encyclopedia) Museum of Television and Radio: see Paley Center for Media. ...

(Encyclopedia) Cooney, Joan Ganz, 1929–, American television producer, b. Phoenix, Ariz. After graduating (1951) from the Univ. of Arizona, Cooney worked as a newspaper reporter and television publicist for ten ye...

(Encyclopedia) Sarnoff, David, 1891–1971, American pioneer in radio and television, b. Russia. Emigrating to the United States in 1900, he worked for the Marconi Wireless Company, winning recognition as the narrat...

(Encyclopedia) Rogers, Fred McFeely, 1928–2003, American children's television personality, b. Latrobe, Pa. Rogers began working in television immediately after he graduated (1951) from Rollins College and in 1953...

(Encyclopedia) broadcasting, transmission, usually using radio frequencies, of sound or images to a large number of radio or television receivers. In the United States the first regularly scheduled radio broadcasts ...